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隨機(jī)信號(hào)與噪聲計(jì)算器

溫度(T - 攝氏)
使用帶寬(Δf - Hz)
電阻(R - 歐姆)
噪聲電壓Vn = (微伏)
噪聲水平 Lu = (dBu)
噪聲水平 LV = (dBV)
工具介紹

隨機(jī)信號(hào)與噪聲計(jì)算器

Formula for the RMS noise voltage:

Vn =sqrt( 4 * kB * T *If *R )

Lu in dBu has the reference voltage V0 = 0.7746

and LV in dBV has the reference voltage V0 = 1 V

Boltzmann constant kB = 1.3806505*10-23 J/K (joule/kelvin); J=W?s

Absolute temperature in kelvin T = 273.15

Bandwidth being considered .If = f2 - f1 = fmax - fmin in Hz; 20 kHz - 20 Hz = 19980 Hz。

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